CVE-2020-9054
Actively exploited. CVE-2020-9054 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2020-9054 is indexed in GitHub PoC and Nuclei. Expect opportunistic scanning and exploitation attempts — prioritize remediation.
Multiple Zyxel network-attached storage (NAS) devices contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code.
CSIRTS triage
- What
- A pre-authentication command injection vulnerability allows remote, unauthenticated attackers to execute arbitrary code.
- Who is affected
- Users of multiple Zyxel network-attached storage devices.
- Urgency
- Immediate remediation is required due to active exploitation and critical severity.
- Action
- Apply the latest firmware updates for the affected Zyxel NAS devices.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2020-9054
Get an email if CVE-2020-9054 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 100% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2020-9054 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- GitHub PoCPublic proof-of-concept repositories on GitHub reference this CVE.look it up ↗
- NucleiA nuclei-templates detection/PoC template exists for this CVE.look it up ↗
Advisory coverage (1)
- criticalexploitedCVE-2020-9054: Zyxel Multiple NAS Devices OS Command Injection Vulnerabilitycisa-kev · 2022-03-25
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2020-9054)